Nut-lock.



H. MOERBE.

NUT LOCK.

APPLICATION FILED MAY 5. 1915.

LQR Patened Oct. 26, 1915.

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HERMAN IVIOERIBE, 0F GIDDINGS, TEXAS.

NUT-LOCK.

Specification of Letters Patent.

Patented Unt. 26, 1915.

Application led May 5, 1915. Serial No. 26,029.

by declare the following to be a full, clear,

and eXact description of they inventiomsuch as will enable others skilled in the art to which it appertains to make and use the same.-

This invention has for its primary object to provide a simple and efcient nut lock embodyingessentially a spring actuated locking element pivotally mounted in a slot formed in the bolt and having a shoulder adapted to engage behind the nut to lock the latter against removal.

With this and other objects in view, the invention consists in the novel construction, arrangement and formation of parts as will be hereinafter specifically described, claimed and illustrated in the accompanyingl drawing, in which:

Figure 1 represents a side elevation of the improved nut lock, partly in section. Fig. 2 represents a fragmental sectional v iew of the threaded extremity of the bolt and nut, illustrating the position of the pivoted locking member as the nut is advanced upon the bolt. Fig. 3 represents a fragmental side elevation of the bolt and locking element, showing the nut in section, and Fig. 4 represents a transverse sectional view in the plane of the pivotal aXis of the locking element.

Referring to the drawing in detail, wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 5 indicates the shank of a bolt of the usual or any preferred construction having a head 6 at one end and external screwthreadsuS at the opposite end adapted t0 fit the internally threaded bore of a nut 7 The threaded extremity ofthe bolt, is formed inwardly of the end wlth a longitudinal groove or slot 9 constituting a seat for -the nut locking element, designated generally by the numeral 10. The outer extremity of the locking element 10 is formed with a pair of' oppositely directed bosses 12 enga'ged within recesses 13 formed in the side walls of the groove or slot 9, whereby the locking element is pivotally secured to,` the bolt.L The opposite 'or inner extremity of the locking element is reduced in width, as'

indicated at 14:, to define a transverse shoulder 15, and the outer or exposed longitudinal edge of the relatively wide portion of the locking element is formed with screwthrea'ds arranged 1n alinement with the screwthreads 8 of the bolt so as to fit the internally screwthreaded bore of the nu't 7 Thenut locking element lis normally retained in outwardly extended position by the tension of a spring 11 engaged at its inner end in a depression or seat 11a formed in the inner wall of the slot 9 and engaged at its outer end with the inner longitudinal edge of the lock'- ing element 10. The outward movement of the locking element is limited by a lip or lug 16 formed upon the ,inner wall of the groove or slot 9 and adapted to be engaged by the inwardly curved reduced extremity 17 of the locking element.

In use, the nut 7 is rotated so as to advance upon the sorewthreads 8 of the bolt shank 5, andv during its inward movement the -spring actuated locking element 10 is depressed vor moved .inwardly against the tension of the spring 11. When the outer face of the `nut passes the shoulder 15 of the looking element the latter vis forced outwardly under the influence of the spring 11, thus engaging the shoulder 15 behind the outer face of the nut and preventing removal of the latter. remove the nut the spring actuated locking element 10 is moved inwardly against the tension of the spring 11, thus moving the shoulder l5 out of the path of the nut.

What I claim is:

A nut lock including a bolt having a longitudinal groove adjacent one end thereof, al locking element pivotally securedin said groove at` its outer end, said locking element having a reduced inner end defining a nutengaging shouldernsaid reduced end being ment thereof, a

W'hen it is desired to wall of said groove adapted to loe engaged n testimony whereof I aix my signature by the reduced end-of said locking element n presence of two witnesses. to limit the outward movement of the latter l HERMAN MOERBE.

when the nut is removed from the bolt, :and Witnesses: 5 means normally retaining said locking ele- L. D. WINTER ment in outwardly extended position. ARTHUR SCHULMANN.

`(lopies of this patentmay be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. C. 

